2024 Trek Top Fuel 8

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  • Regular price $5,999.99

The Top Fuel 8 fuses the speed of a cross-country bike with the capability and forgiveness of a full-suspension trail bike. It's quick and nimble, and dishes out serious fun on flow trails and techy descents alike.

It's right for you if...

You’re looking for a do-it-all full-suspension mountain bike that balances efficiency with shred-ability. You want to rip rough descents, fly up climbs and crush lap after lap.

The tech you get

A lightweight aluminium frame with internal storage, 130 mm RockShox Pike fork with plush DebonAir spring, 120 mm of rear travel with a RockShox Deluxe Ultimate RCT shock and a Shimano XT drivetrain. Plus, 4-piston brakes for confident descents, Bontrager Line Comp 30 wheels that are already completely tubeless-ready, including sealant and a Bontrager Line Dropper.

The final word

The Top Fuel 8 gets you the value of an alloy frame with drivetrain, fork and brake upgrades that keep up as you progress in speed and skill.

Why you'll love it

  1. This bike’s killer suspension set-up is both efficient and ready to party
  2. You get wide Bontrager Line Comp 30 wheels that boost grip and reduce flats with their tubeless setup
  3. Mino Link lets you make small adjustments to your geometry quickly and easily, even mid-ride
  4. A sleek internal storage compartment gives you a versatile spot to stow tools and gear
  5. New, removable Knock Block has a bigger steering angle to keep cables and hoses safe without sacrificing turning radius

Colour: Mercury

*Please note – spec applies to all sizes unless listed separately


Frame Alpha Platinum Aluminium, internal storage, tapered head tube, Knock Block 2.0, internal guided routing, downtube guard, magnesium rocker link, Mino Link, ABP, Boost148, 120 mm travel
Fork RockShox Pike, DebonAir spring, Rush RC damper, tapered steerer, 44 mm offset, Boost110, 15 mm Maxle Stealth, 130 mm travel
Shock RockShox Deluxe Ultimate RCT, 185 mm x 50 mm
Max compatible fork travel 130mm (541mm axle-to-crown)

Wheel front Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle
Wheel rear Bontrager Line Comp 30, Tubeless-Ready, Rapid Drive 108, 6-bolt, Boost148, 12 mm thru axle
Tyre Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 29 x 2.40''
Tyre part Bontrager TLR sealant, 180 ml/6 oz
Rim strip Bontrager TLR
Max tyre size Frame: 29x2.50", Fork: See manufacturer

Shifter Shimano XT M8100, 12-speed
Rear derailleur Shimano XT M8100, long cage
*Crank Size: S, M, M/L, L
Shimano Deore M6120, 30T ring, 55 mm chainline, 170 mm length
Size: XL
Shimano Deore M6120, 30T ring, 55 mm chainline, 175 mm length
Bottom bracket Shimano BB-MT501 BSA
Cassette Shimano SLX M7100, 10-51T, 12-speed
Chain Shimano SLX M7100, 12-speed
Max. chainring size 1x: 36T round, 34T oval, min 28T

Saddle Bontrager Arvada, steel rails, 138 mm width
*Handlebar Size: S
Bontrager Line, alloy, 35 mm, 27.5 mm rise, 750 mm width
Size: M, M/L, L, XL
Bontrager Line, alloy, 35 mm, 27.5 mm rise, 780 mm width
Grips Bontrager XR Trail Comp, nylon lock-on
Stem Bontrager Elite, 35 mm, 0-degree, 45 mm length
Head set Knock Block 2.0 Integrated, 72-degree radius (includes infinite-radius chip), sealed cartridge bearing, 1-1/8" top, 1.5" bottom
*Brake Size: S, M, M/L, L, XL
Shimano M6120 4-piston hydraulic disc
Size: S, M, M/L, L, XL
Shimano 4-piston hydraulic disc, M6100 lever, M6120 calliper
Brake rotor Shimano RT66, 6-bolt, 180 mm
Rotor size Max brake rotor sizes - Frame: 180mm, Fork: see fork manufacturer

Weight M - 14.85 kg / 32.74 lb
Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.